Folding tray



FIG. 1 is a perspective view showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a rear view thereof; and,

FIG. 8 is a view similar to FIG. 3 showing the tray legs folded. 

The ornamental design for a folding tray, as shown and described. 